C#m7, F#7, Cm7, F7, Bm7, Bb7, Amaj7

Analysis

Heard in A major

Progressions in these changes

• Chords 1 to 2

  Major ii-V Progression in B

  C#m7 F#7

• Chords 3 to 4

  Major ii-V Progression in Bb

  Cm7 F7

• Chords 5 to 7

  Tritone Sub ii-V-I Progression in A

  Bm7 Bb7 Amaj7

Scales to play

• Over C#m7 · iii7

  C# Aeolian

  Mode 6 of Major

• Over F#7 · V7/ii

  F# Minor Blues

  Mode 6 of Blues

• Over Cm7 · ♭iii7

  C Dorian

  Mode 2 of Major

• Over F7 · ♭VI7

  F Lydian Dominant

  Mode 4 of Melodic Minor

• Over Bm7 · ii7

  B Dorian

  Mode 2 of Major

• Over Bb7 · subV7

  Bb Lydian Dominant

  Mode 4 of Melodic Minor

• Over Amaj7 · Imaj7

  A Ionian

  The major scale and its modes are the most commonly used scales in western music.